virtualx-engine/modules/csg/csg_gizmos.cpp
Rémi Verschelde a7f49ac9a1 Update copyright statements to 2020
Happy new year to the wonderful Godot community!

We're starting a new decade with a well-established, non-profit, free
and open source game engine, and tons of further improvements in the
pipeline from hundreds of contributors.

Godot will keep getting better, and we're looking forward to all the
games that the community will keep developing and releasing with it.
2020-01-01 11:16:22 +01:00

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13 KiB
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/*************************************************************************/
/* csg_gizmos.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "csg_gizmos.h"
///////////
CSGShapeSpatialGizmoPlugin::CSGShapeSpatialGizmoPlugin() {
Color gizmo_color = EDITOR_DEF("editors/3d_gizmos/gizmo_colors/csg", Color(0.0, 0.4, 1, 0.15));
create_material("shape_union_material", gizmo_color);
create_material("shape_union_solid_material", gizmo_color);
gizmo_color.invert();
create_material("shape_subtraction_material", gizmo_color);
create_material("shape_subtraction_solid_material", gizmo_color);
gizmo_color.r = 0.95;
gizmo_color.g = 0.95;
gizmo_color.b = 0.95;
create_material("shape_intersection_material", gizmo_color);
create_material("shape_intersection_solid_material", gizmo_color);
create_handle_material("handles");
}
String CSGShapeSpatialGizmoPlugin::get_handle_name(const EditorSpatialGizmo *p_gizmo, int p_idx) const {
CSGShape *cs = Object::cast_to<CSGShape>(p_gizmo->get_spatial_node());
if (Object::cast_to<CSGSphere>(cs)) {
return "Radius";
}
if (Object::cast_to<CSGBox>(cs)) {
static const char *hname[3] = { "Width", "Height", "Depth" };
return hname[p_idx];
}
if (Object::cast_to<CSGCylinder>(cs)) {
return p_idx == 0 ? "Radius" : "Height";
}
if (Object::cast_to<CSGTorus>(cs)) {
return p_idx == 0 ? "InnerRadius" : "OuterRadius";
}
return "";
}
Variant CSGShapeSpatialGizmoPlugin::get_handle_value(EditorSpatialGizmo *p_gizmo, int p_idx) const {
CSGShape *cs = Object::cast_to<CSGShape>(p_gizmo->get_spatial_node());
if (Object::cast_to<CSGSphere>(cs)) {
CSGSphere *s = Object::cast_to<CSGSphere>(cs);
return s->get_radius();
}
if (Object::cast_to<CSGBox>(cs)) {
CSGBox *s = Object::cast_to<CSGBox>(cs);
switch (p_idx) {
case 0: return s->get_width();
case 1: return s->get_height();
case 2: return s->get_depth();
}
}
if (Object::cast_to<CSGCylinder>(cs)) {
CSGCylinder *s = Object::cast_to<CSGCylinder>(cs);
return p_idx == 0 ? s->get_radius() : s->get_height();
}
if (Object::cast_to<CSGTorus>(cs)) {
CSGTorus *s = Object::cast_to<CSGTorus>(cs);
return p_idx == 0 ? s->get_inner_radius() : s->get_outer_radius();
}
return Variant();
}
void CSGShapeSpatialGizmoPlugin::set_handle(EditorSpatialGizmo *p_gizmo, int p_idx, Camera *p_camera, const Point2 &p_point) {
CSGShape *cs = Object::cast_to<CSGShape>(p_gizmo->get_spatial_node());
Transform gt = cs->get_global_transform();
//gt.orthonormalize();
Transform gi = gt.affine_inverse();
Vector3 ray_from = p_camera->project_ray_origin(p_point);
Vector3 ray_dir = p_camera->project_ray_normal(p_point);
Vector3 sg[2] = { gi.xform(ray_from), gi.xform(ray_from + ray_dir * 16384) };
if (Object::cast_to<CSGSphere>(cs)) {
CSGSphere *s = Object::cast_to<CSGSphere>(cs);
Vector3 ra, rb;
Geometry::get_closest_points_between_segments(Vector3(), Vector3(4096, 0, 0), sg[0], sg[1], ra, rb);
float d = ra.x;
if (SpatialEditor::get_singleton()->is_snap_enabled()) {
d = Math::stepify(d, SpatialEditor::get_singleton()->get_translate_snap());
}
if (d < 0.001)
d = 0.001;
s->set_radius(d);
}
if (Object::cast_to<CSGBox>(cs)) {
CSGBox *s = Object::cast_to<CSGBox>(cs);
Vector3 axis;
axis[p_idx] = 1.0;
Vector3 ra, rb;
Geometry::get_closest_points_between_segments(Vector3(), axis * 4096, sg[0], sg[1], ra, rb);
float d = ra[p_idx];
if (SpatialEditor::get_singleton()->is_snap_enabled()) {
d = Math::stepify(d, SpatialEditor::get_singleton()->get_translate_snap());
}
if (d < 0.001)
d = 0.001;
switch (p_idx) {
case 0: s->set_width(d * 2); break;
case 1: s->set_height(d * 2); break;
case 2: s->set_depth(d * 2); break;
}
}
if (Object::cast_to<CSGCylinder>(cs)) {
CSGCylinder *s = Object::cast_to<CSGCylinder>(cs);
Vector3 axis;
axis[p_idx == 0 ? 0 : 1] = 1.0;
Vector3 ra, rb;
Geometry::get_closest_points_between_segments(Vector3(), axis * 4096, sg[0], sg[1], ra, rb);
float d = axis.dot(ra);
if (SpatialEditor::get_singleton()->is_snap_enabled()) {
d = Math::stepify(d, SpatialEditor::get_singleton()->get_translate_snap());
}
if (d < 0.001)
d = 0.001;
if (p_idx == 0)
s->set_radius(d);
else if (p_idx == 1)
s->set_height(d * 2.0);
}
if (Object::cast_to<CSGTorus>(cs)) {
CSGTorus *s = Object::cast_to<CSGTorus>(cs);
Vector3 axis;
axis[0] = 1.0;
Vector3 ra, rb;
Geometry::get_closest_points_between_segments(Vector3(), axis * 4096, sg[0], sg[1], ra, rb);
float d = axis.dot(ra);
if (SpatialEditor::get_singleton()->is_snap_enabled()) {
d = Math::stepify(d, SpatialEditor::get_singleton()->get_translate_snap());
}
if (d < 0.001)
d = 0.001;
if (p_idx == 0)
s->set_inner_radius(d);
else if (p_idx == 1)
s->set_outer_radius(d);
}
}
void CSGShapeSpatialGizmoPlugin::commit_handle(EditorSpatialGizmo *p_gizmo, int p_idx, const Variant &p_restore, bool p_cancel) {
CSGShape *cs = Object::cast_to<CSGShape>(p_gizmo->get_spatial_node());
if (Object::cast_to<CSGSphere>(cs)) {
CSGSphere *s = Object::cast_to<CSGSphere>(cs);
if (p_cancel) {
s->set_radius(p_restore);
return;
}
UndoRedo *ur = SpatialEditor::get_singleton()->get_undo_redo();
ur->create_action(TTR("Change Sphere Shape Radius"));
ur->add_do_method(s, "set_radius", s->get_radius());
ur->add_undo_method(s, "set_radius", p_restore);
ur->commit_action();
}
if (Object::cast_to<CSGBox>(cs)) {
CSGBox *s = Object::cast_to<CSGBox>(cs);
if (p_cancel) {
switch (p_idx) {
case 0: s->set_width(p_restore); break;
case 1: s->set_height(p_restore); break;
case 2: s->set_depth(p_restore); break;
}
return;
}
UndoRedo *ur = SpatialEditor::get_singleton()->get_undo_redo();
ur->create_action(TTR("Change Box Shape Extents"));
static const char *method[3] = { "set_width", "set_height", "set_depth" };
float current = 0;
switch (p_idx) {
case 0: current = s->get_width(); break;
case 1: current = s->get_height(); break;
case 2: current = s->get_depth(); break;
}
ur->add_do_method(s, method[p_idx], current);
ur->add_undo_method(s, method[p_idx], p_restore);
ur->commit_action();
}
if (Object::cast_to<CSGCylinder>(cs)) {
CSGCylinder *s = Object::cast_to<CSGCylinder>(cs);
if (p_cancel) {
if (p_idx == 0)
s->set_radius(p_restore);
else
s->set_height(p_restore);
return;
}
UndoRedo *ur = SpatialEditor::get_singleton()->get_undo_redo();
if (p_idx == 0) {
ur->create_action(TTR("Change Cylinder Radius"));
ur->add_do_method(s, "set_radius", s->get_radius());
ur->add_undo_method(s, "set_radius", p_restore);
} else {
ur->create_action(TTR("Change Cylinder Height"));
ur->add_do_method(s, "set_height", s->get_height());
ur->add_undo_method(s, "set_height", p_restore);
}
ur->commit_action();
}
if (Object::cast_to<CSGTorus>(cs)) {
CSGTorus *s = Object::cast_to<CSGTorus>(cs);
if (p_cancel) {
if (p_idx == 0)
s->set_inner_radius(p_restore);
else
s->set_outer_radius(p_restore);
return;
}
UndoRedo *ur = SpatialEditor::get_singleton()->get_undo_redo();
if (p_idx == 0) {
ur->create_action(TTR("Change Torus Inner Radius"));
ur->add_do_method(s, "set_inner_radius", s->get_inner_radius());
ur->add_undo_method(s, "set_inner_radius", p_restore);
} else {
ur->create_action(TTR("Change Torus Outer Radius"));
ur->add_do_method(s, "set_outer_radius", s->get_outer_radius());
ur->add_undo_method(s, "set_outer_radius", p_restore);
}
ur->commit_action();
}
}
bool CSGShapeSpatialGizmoPlugin::has_gizmo(Spatial *p_spatial) {
return Object::cast_to<CSGSphere>(p_spatial) || Object::cast_to<CSGBox>(p_spatial) || Object::cast_to<CSGCylinder>(p_spatial) || Object::cast_to<CSGTorus>(p_spatial) || Object::cast_to<CSGMesh>(p_spatial) || Object::cast_to<CSGPolygon>(p_spatial);
}
String CSGShapeSpatialGizmoPlugin::get_name() const {
return "CSGShapes";
}
int CSGShapeSpatialGizmoPlugin::get_priority() const {
return -1;
}
bool CSGShapeSpatialGizmoPlugin::is_selectable_when_hidden() const {
return true;
}
void CSGShapeSpatialGizmoPlugin::redraw(EditorSpatialGizmo *p_gizmo) {
CSGShape *cs = Object::cast_to<CSGShape>(p_gizmo->get_spatial_node());
p_gizmo->clear();
Ref<Material> material;
switch (cs->get_operation()) {
case CSGShape::OPERATION_UNION:
material = get_material("shape_union_material", p_gizmo);
break;
case CSGShape::OPERATION_INTERSECTION:
material = get_material("shape_intersection_material", p_gizmo);
break;
case CSGShape::OPERATION_SUBTRACTION:
material = get_material("shape_subtraction_material", p_gizmo);
break;
}
Ref<Material> handles_material = get_material("handles");
PoolVector<Vector3> faces = cs->get_brush_faces();
Vector<Vector3> lines;
lines.resize(faces.size() * 2);
{
PoolVector<Vector3>::Read r = faces.read();
for (int i = 0; i < lines.size(); i += 6) {
int f = i / 6;
for (int j = 0; j < 3; j++) {
int j_n = (j + 1) % 3;
lines.write[i + j * 2 + 0] = r[f * 3 + j];
lines.write[i + j * 2 + 1] = r[f * 3 + j_n];
}
}
}
p_gizmo->add_lines(lines, material);
p_gizmo->add_collision_segments(lines);
if (p_gizmo->is_selected()) {
// Draw a translucent representation of the CSG node
Ref<ArrayMesh> mesh = memnew(ArrayMesh);
Array array;
array.resize(Mesh::ARRAY_MAX);
array[Mesh::ARRAY_VERTEX] = faces;
mesh->add_surface_from_arrays(Mesh::PRIMITIVE_TRIANGLES, array);
Ref<Material> solid_material;
switch (cs->get_operation()) {
case CSGShape::OPERATION_UNION:
solid_material = get_material("shape_union_solid_material", p_gizmo);
break;
case CSGShape::OPERATION_INTERSECTION:
solid_material = get_material("shape_intersection_solid_material", p_gizmo);
break;
case CSGShape::OPERATION_SUBTRACTION:
solid_material = get_material("shape_subtraction_solid_material", p_gizmo);
break;
}
p_gizmo->add_mesh(mesh, false, Ref<SkinReference>(), solid_material);
}
if (Object::cast_to<CSGSphere>(cs)) {
CSGSphere *s = Object::cast_to<CSGSphere>(cs);
float r = s->get_radius();
Vector<Vector3> handles;
handles.push_back(Vector3(r, 0, 0));
p_gizmo->add_handles(handles, handles_material);
}
if (Object::cast_to<CSGBox>(cs)) {
CSGBox *s = Object::cast_to<CSGBox>(cs);
Vector<Vector3> handles;
handles.push_back(Vector3(s->get_width() * 0.5, 0, 0));
handles.push_back(Vector3(0, s->get_height() * 0.5, 0));
handles.push_back(Vector3(0, 0, s->get_depth() * 0.5));
p_gizmo->add_handles(handles, handles_material);
}
if (Object::cast_to<CSGCylinder>(cs)) {
CSGCylinder *s = Object::cast_to<CSGCylinder>(cs);
Vector<Vector3> handles;
handles.push_back(Vector3(s->get_radius(), 0, 0));
handles.push_back(Vector3(0, s->get_height() * 0.5, 0));
p_gizmo->add_handles(handles, handles_material);
}
if (Object::cast_to<CSGTorus>(cs)) {
CSGTorus *s = Object::cast_to<CSGTorus>(cs);
Vector<Vector3> handles;
handles.push_back(Vector3(s->get_inner_radius(), 0, 0));
handles.push_back(Vector3(s->get_outer_radius(), 0, 0));
p_gizmo->add_handles(handles, handles_material);
}
}
EditorPluginCSG::EditorPluginCSG(EditorNode *p_editor) {
Ref<CSGShapeSpatialGizmoPlugin> gizmo_plugin = Ref<CSGShapeSpatialGizmoPlugin>(memnew(CSGShapeSpatialGizmoPlugin));
SpatialEditor::get_singleton()->add_gizmo_plugin(gizmo_plugin);
}